/*
 * because errno is a define: #define errno (*__errno_location ())
 * http://www.cplusplus.com/reference/clibrary/cerrno/errno/ 上面明确说了的
 */

#include <errno.h>

class TestClass
{
	int m_mem1;
	int errno;
};

#include <stdio.h>

int main( int argc, char *argv[] )
{
	printf( "TestClass size: %d\n", sizeof( TestClass ) );
	return 0;
};

